Canon EF 28 mm f/2.8 매뉴얼 - 페이지 3

{카테고리_이름} Canon EF 28 mm f/2.8에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Canon EF 28 mm f/2.8 22 페이지.
Canon EF 28 mm f/2.8에 대해서도 마찬가지입니다: 사용 설명서 (8 페이지)

H O W TO DISMOUNT AND MOUNT LENS

TO DISMOUNT LENS

Unscrew the lens, which may be in either extended or

retracted position, by grasping its b;tsc. First loosen the

lens by a slight jerking motion, then unscrew gently.

Do not oil the thread of the lens or tamper with the

lens in any way. Always keep the lens flange shaded.

TO MOUNT LENS

Holding the lens by its base, find the thread of the

screw by turning the [ens slightly in a counter-clockwise

direction, then screw clockwise into the flange until light.

DO NOT ATTEMPT TO T I G H T E N THE LENS INTO

THE FLANGE

BY GRASPING ANY OTHER PART

BUT THE BASE.

I N F R A R E D

M A R K

Infrared Mark is used only for infrared photography. After focusing in the usual manner, read

the object distance scale of the tens, and then turn the lens so that the object distance is exactly

opposite the " R " index mark. The lens is now focused for infrared photography.

Infrared mark on any Canon lens is situated

in a position where it will offer the best re-

sult by using infrared film and infrared

filter (such as Kodak IR 135 and Wratten

Filter No.87).

both having a maximum

sensitivity at a wave length of approximately

8000A. Therefore, it is appropriate to shift

about 1/3 of the amount to " R " when

using, say, Kodak Plus X or

regular-

panchromatic film with a Wratten filter or

about No. 25.